The "Sekonic
- Master," model L-104, was made under license from Daystrom who owned
Weston at this time. It is identical to the Weston Master IV which was
otherwise made only in the UK, except for the name on the dial: the Weston
says, "Weston Master IV" while the Sekonic says "Sekonic - Master".

Sekonic also sold the meter as a Weston IV in some non UK European counctries.